Finite temperature behaviour of the ISS-uplifted KKLT model

Papineau, Chloé

doi:10.1088/1126-6708/2008/05/068

Cited by 14 publications

(14 citation statements)

References 66 publications

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“…The vacuum selection in meta-stable SUSY breaking models has been discussed in several literature for the ISS-type models [39,40,41,42,43,44,45] and the generalized O'Raifeartaigh models [46,47,48,33,34]. In particular, it was shown in Ref.…”

Section: Vacuum Selectionmentioning

confidence: 99%

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Cosmologically viable gauge mediation

Fukushima

Kitano

Takahashi

2013

J. High Energ. Phys.

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Gauge mediation provides us with a complete picture of supersymmetry breaking and its mediation within the effective field theories, and thus allows us to discuss consistencies with low-energy particle physics as well as cosmological observations. We study in detail the cosmological evolution of the pseudo-modulus field in the supersymmetry breaking sector and also the production of the gravitinos in the early Universe in a simple (but a complete) model of gauge mediation. Under fairly reasonable assumptions, it is found that there exists a parameter region where dark matter of the Universe is explained by both thermally and non-thermally produced gravitinos, while the baryon asymmetry of the Universe is generated through the thermal leptogenesis.

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Section: Vacuum Selectionmentioning

confidence: 99%

“…For the potential at finite temperatures, we use the one in Eq. (44). The decay temperature is calculated by using the formulae in Refs.…”

Section: S-dominationmentioning

confidence: 99%

Cosmologically viable gauge mediation

Fukushima

Kitano

Takahashi

2013

J. High Energ. Phys.

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“…The presence of minima at high T could also have implications regarding the question how natural it is for the Universe to be in a metastable state at T = 0. More precisely, recent studies of various toy models [221,222,223,224,225] have shown that, despite the presence of a supersymmetric global minimum, it is thermodynamically preferable for a system starting in a high T minimum to end up at low temperatures in a (long-lived) local metastable minimum with broken supersymmetry. Similar arguments, if applicable for more realistic systems, could be of great conceptual value given the present accelerated expansion of the Universe.…”

Section: Thermal Effects In String Compactificationsmentioning

confidence: 99%

String loop moduli stabilisation and cosmology in IIB flux compactifications

Cicoli¹

2010

Fortschritte der Physik

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We present a detailed review of the moduli stabilisation mechanism and possible cosmological implications of the LARGE Volume Scenario (LVS) that emerges naturally in the context of type IIB Calabi‐Yau flux compactifications. After a quick overview of physics beyond the Standard Model, we present string theory as the most promising candidate for a consistent theory of quantum gravity. We then give a pedagogical introduction to type IIB compactifications on Calabi‐Yau orientifolds where most of the moduli are stabilised by turning on background fluxes. However in order to fix the Kähler moduli one needs to consider several corrections beyond the leading order approximations. After presenting a survey of all the existing solutions to this problem, we derive the topological conditions on an arbitrary Calabi‐Yau to obtain the LVS since it requires no fine‐tuning of the fluxes and provides a natural solution of the hierarchy problem. After performing a systematic study of the behaviour of string loop corrections for general type IIB compactifications, we show how they play a crucial rôle to achieve full Kähler moduli stabilisation in the LVS. Before examining the possible cosmological implication of these scenarios, we present a broad overview of string cosmology. We then notice how, in the case of K3‐fibrations, string loop corrections give rise naturally to an inflationary model which yields observable gravity waves. We finally study the finite‐temperature behaviour of the LVS and discuss prospects for future work.

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“…After briefly recalling the basic ingredients of topological order and topological symmetry breaking and settling some notation, we show how open string operators and the modular S-matrix can be used as order parameters and phase indicators for topological symmetry breaking. We then introduce a class of multi-parameter lattice actions for non-abelian discrete gauge theories and verify the theoretical analysis [18,19] in detail by numerical simulations.…”

Section: Introductionmentioning

confidence: 98%

“…The hidden quantum group symmetry and its representation theory that forms a modular tensor category is a powerful way to characterize the distinct topological phases of pure DGTs and forms the natural basis for the concept of topological symmetry breaking, which is defined as the breaking of quantum group symmetry [17][18][19]. A brief review of this symmetry breaking mechanism is given in section 1.3.…”

Section: Introductionmentioning

confidence: 99%

The modularS-matrix as order parameter for topological phase transitions

Bais

Romers

2012

New J. Phys.

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We study topological phase transitions in discrete gauge theories in two spatial dimensions induced by the formation of a Bose condensate. We analyse a general class of euclidean lattice actions for these theories which contain one coupling constant for each conjugacy class of the gauge group. To probe the phase structure we use a complete set of open and closed anyonic string operators. The open strings allow one to determine the particle content of the condensate, whereas the closed strings enable us to determine the matrix elements of the modular S-matrix, in both the unbroken and broken phases. From the measured broken S-matrix we may read off the sectors that split or get identified in the broken phase, as well as the sectors that are confined. In this sense the modular S-matrix can be employed as a matrix valued nonlocal order parameter from which the low-energy effective theories that occur in different regions of parameter space can be fully determined. To verify our predictions, we studied a non-abelian anyon model based on the quaternion group H =D 2 of the order of eight by Monte Carlo simulation. We probe part of the phase diagram for the pure gauge theory and find a variety of phases with magnetic condensates leading to various forms of (partial) confinement in complete agreement with the algebraic breaking analysis. Also the order of various transitions is established.

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Finite temperature behaviour of the ISS-uplifted KKLT model

Cited by 14 publications

References 66 publications

Cosmologically viable gauge mediation

Cosmologically viable gauge mediation

String loop moduli stabilisation and cosmology in IIB flux compactifications

The modularS-matrix as order parameter for topological phase transitions

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